Bluetooth Version: Bluetooth V4.1 + EDR wireless transmission protocol
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<br />Changing voltage: MICRO USB 5V
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<br />Working current: 25-30 mA
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<br />Output power: 2x20mW
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<br />Blue tooth working range: 10M
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<br />Frequency range: 2.401-2.480GHz
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<br />Frequency response: 20HZ-20KHZ
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<br />SNR: S / N   95
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<br />Distortion factor:   1%
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<br />Fashion sports ear-hook style design
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<br />Size: 40 * 24 * 32mm, Weight: 16.4g
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<br />Talk Time:  3.5 Hours
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<br />Music Time:  2.5 Hours
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<br />Standby Time:   150Hours;
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<br />Charge Time:   2 Hours
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<br />Package:
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<br />1*Sport Bluetooth Earphone